[linux-lvm] vg disappeared after replacing disc in raid10

[Stuart D Gathman]

On 03/26/2013 02:13 PM, Björn Nadrowski expounded in part:
>
> So, should I rewrite the beginning of the device with the dd command?
>
> What then?
>
> Thanks a lot for all your help!
>
You could try the dd, if it has a good chance of restoring the device to 
before the pvcreate.  I don't know offhand how much of a PV pvcreate 
overwrites.  Hopefully, an LVM guru can chime in. Before doing pvcreate, 
things like vg_scan -v should give a clue as to whether knoppix is even 
looking at md127.  You might need to tweak the device filter in lvm.conf 
for knoppix.
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